Home / 143,943.90-198,735.03-90,302.46

Finding the Fourth Proportional to 143,943.90, 198,735.03 and 90,302.46

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Solution

The fourth proportional to 143,943.90, 198,735.03 and 90,302.46 is: 124,675.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,943.90 : 198,735.03 = 90,302.46 : x
  2. Step 2: Convert to fraction form
    143,943.90/198,735.03 = 90,302.46/x
  3. Step 3: Cross multiply
    143,943.90x = 198,735.03 × 90,302.46
  4. Step 4: Simplify right side
    143,943.90x = 17,946,262,097.17
  5. Step 5: Solve for x
    x = 17,946,262,097.17/143,943.90
  6. Step 6: Final answer
    x = 124,675.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.